Focus groups Usability testIn situ interviews
User Centered Design
de Ruyter B. (2003). User Centred Design, In (Eds.): Aarts, Emile, and Stefano Marzano (editors)
(2003), The New Everyday: Vision on Ambient Intelligence, 010 Publishers, Rotterdam
de Ruyter, B., Markopoulos, P., Aarts, E., Ijsselsteijn, W. (2004). Engineering the user experience,
In: W. Weber, J. Rabaey, and E. Aarts (Eds): Ambient Intelligence. Springer-Verlag.
From Technology Development towards Social Innovation
Ambient Assisted Living
de Ruyter, B. & Pelgrim, E. (2007). Ambient Assisted Living research in CareLab, ACM Interactions,
Volume 14, Issue 4, July + August 2007.
(Mark Weiser, Scientific American 1991)
for the 21st Century
Specialized elements of hardware and software,
connected by wires, radio waves and infrared, will be so
ubiquitous that no one will notice their presence
Ubiquitous Computing (Mark Weiser)
Focus groups Usability test
• Focus group sessions to collect early user feedback on concepts
• Controlled experiments (limited in time) to study the usability and end
– Multi observer setup
– Control & coding in one system
– Distributed coding scheme
– Observed & automated events
• Use of the propositions in real life settings over longer periods of time
• Data collection through logging and in situ interviews
• Complementary findings to laboratory studies
In situ interviews
Kaptein, M.C., de Ruyter, B., Markopoulos, P., & Aarts, E. (2010). Two Acts of Social intelligence:
The effects of mimicry and social praise on the evaluation of an artificial agent. AI &Society, 1-13.
Kaptein, M.C., de Ruyter, B., Markopoulos, P., & Aarts, E. (2009). Persuading you: Individual
differences in susceptibility to persuasion, 12th IFIP TC 13 International Conference.
de Ruyter, B., Zwartkruis-Pelgrim, E. & Aarts, E. (2010). Ambient assisted living research in the
CareLab, GeroPsych: The Journal of Gerontopsychology and Geriatric Psychiatry, Vol 23(2), Jun
Gimenez, M.C., Geerdinck, L.M., Versteylen, M., Leffers, P., Meekes, G.J.B.M., Herremans, H., De
Ruyter, B., & Schlangen, L.J.M. (2011). Light and Sleep within hospital settings, Sleep-Wake
Research In The Netherlands, Annual Proceedings of the Dutch Society for Sleep-Wake Research
(NSWO), Vol 22, T. de Boer et al. (Eds.), Ipskamp Drukkers BV, Enschede, ISBN 978-90-73675-00-1,
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